Adsorption of 4He on Bare and on Argon-Coated Exfoliated Graphite at Low Temperatures

  • E. Lerner
  • J. G. Daunt


Measurements have been made of adsorption isotherms of 4He on bare, exfoliated graphite (Grafoil†1) and on the same substrate coated with a completed monolayer of argon. The isotherms were measured at 4.2, 6.18, 7.90, 9.65, 11.60, 13.50, 15.08, and 18.55°K in the pressure range 0.25–25 Torr using an apparatus which has been described previously. Thermomolecular pressure corrections were less than 3% even at the lowest temperatures and the accuracy of pressure measurement was within 0.5%. Details of the method of temperature and pressure measurement and of the corrections used in the calculations of the mass adsorbed have been given previously.2 3


Adsorption Isotherm Isosteric Heat Exfoliate Graphite Themis Program Copper Post 
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  1. 1.
    M. Bretz and J. G. Dash, Phys. Rev. Lett. 26, 963 (1971).ADSCrossRefGoogle Scholar
  2. 2.
    J. G. Daunt and C. Z. Rosen, J. Low Temp. Phys. 3, 89 (1970).ADSCrossRefGoogle Scholar
  3. 3.
    E. Lerner and J. G. Daunt, J. Low Temp. Phys. 6, 241 (1972).ADSCrossRefGoogle Scholar
  4. 4.
    J. G. Daunt and E. Lerner, J. Low Temp. Phys. (in press).Google Scholar
  5. 5.
    B. B. Fisher and W. G. McMillan, J. Chem. Phys. 28, 549 (1958).ADSCrossRefGoogle Scholar
  6. 6.
    D. E. Hagen, A. D. Novaco, and F. J. Milford, in Proc. II Intern. Svmp. on Adsorption-Desorption Phenomena, Florence, Academic, New York, (1971).Google Scholar
  7. 7.
    A. D. Novaco and F. J. Milford, Phys. Rev. AS, 783 (1972).Google Scholar
  8. 8.
    A. D. Novaco and F. J. Milford, Phys. Rev. A4, 1136 (1971).CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1974

Authors and Affiliations

  • E. Lerner
    • 1
  • J. G. Daunt
    • 1
  1. 1.Cryogenics CenterStevens Institute of TechnologyHobokenUSA

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